Improvement in grain-elevators for harvesters



UNITED STAT-Es PATENTv QFFICE.

EBENEZER MCFADDEN, OF SPARTA, ILLINOIS.

IMPROVEMENT IN GRAIN-ELEVTORS FOR HARVESTERS..

Specification forming part of Letters Patent No. 180,253, dated-July 25, 1876 application filed April 18,1816.

To all whom it-may'vconcem: f

Beit known that I, EBENEZER MGFADDEN, of Sparta, in the county ot' Randolph-and State ot' Illinois,have invented a new and Improved Grain Elevatorl for 'Hari/esters, ot' which the following is a specication lVly invention is a contrivance of the teeth, the apron, and the rollers which work the apron, for allowing the teeth to swing back automatically to pass the trough into which the grain falls, and in like manner take the required position for taking up the grain.

Figure l is a longitudinal sectional elevation of my improved elevator, taken on. theline :c x of Fig. 2. Fig. 2 is a plan view. Fig. 3 is a plan, and Fig. 4 is a longitudinal section, ot' the links for the endless carrier for the teeth.

Similar letters of reference indicate correspondin g parts.

A represents the endless carrier, to which the teeth B are pivoted, and which is carried on the rollers C D. The teeth extend a little at E beyond the pivots by which they are connected to the carrier, so that the lower roller throws them out, as shown at the lower end, to take the grain,and the board F turns them down to hug the grain close, but the upper roller is grooved at H to allow the teeth to swing back freely to pass the grain-trough, into which the grain falls.

It the quantity of grain is large, the heels E ot' the teeth raise the carrier above the board F, and thus tighten it on the rollers, to increase the friction of the carrier on the rollers as its work increases.

Instead ot using leather belts for the-cal`v rier, I propose to employ chain-links J with y hook-eyes L for coupling them together, the said eyes being so contrived at the openings AK, and the cross-bars I being so iiattened and 'with a tripping device, whereby they will be forced to press the grain continuously in their upward passage, as set forth.

2. In a grain-elevator, having teeth with extensions E, the upper roll H, grooved to allow the teeth to loosen theirhohl upon the grain, as'specied.

EBENEZER MGFADDEN.

Witnesses:

S. LovEJoY TAYLOR, JOHN TAYLOR. 

